An image encryption scheme based on three-dimensional Brownian motion and chaotic system
Chai Xiu-Li1, 2, †, Gan Zhi-Hua3, Yuan Ke1, Lu Yang4, Chen Yi-Ran2
       

(color online) Simulation results of 3D Brownian motion, showing (a) the positions of the 200 particles at some time, and (b) the movement trace of one particle.